Digestive and Excretory Systems

Kentreena and Carson are learning about the digestive system in their biology class. During a discussion, their teacher asks, "What is the purpose of saliva in digestion?"

• To begin the chemical breakdown of food.

• To absorb nutrients directly into the bloodstream.

• To provide a source of energy for the body.

• To mechanically break down food into smaller pieces.

Carson and Jaquan are learning about the human body in their science class. They are curious to know what the digestive system breaks down food into. What does your digestive system break down food into?

• Vitamins

• Nutrients

• Minerals

• Fiber

During a science class, Jaquan and Cooper were discussing how the body gets rid of waste. What is this process called?

• Digestion

• Excretion

• Absorption

• Metabolism

Carson and Kentreena are learning about the human body in their biology class. They are curious about how the body processes the food they eat. What is the main function of the digestive system?

• To break down food and absorb nutrients.

• To circulate blood throughout the body.

• To provide structural support to the body.

• To regulate body temperature.

During a biology class, Carson and Cooper were discussing the role of different organs in digestion. Carson asked, "What is the primary function of the pancreas in digestion?"

• To produce bile

• To secrete insulin

• To produce digestive enzymes

• To absorb nutrients

Cooper and Kentreena are learning about the human body in their biology class. Their teacher asks, "What is the job of your kidneys?"

• Filter blood and produce hormones.

• Clean blood, sending waste to bladder.

• Regulate body temperature and hydration.

• Store excess nutrients for energy.

During a biology class, Cooper and Kentreena were discussing the human digestive system. Cooper asked, "What is the function of the large intestine?"

• To absorb nutrients and vitamins.

• To absorb water and form feces.

• To digest proteins and fats.

• To produce bile for digestion.

Carson and Cooper are learning about the human body in their science class. They are curious to know which system is responsible for getting rid of waste. Can you help them find the answer?

• Digestive system

• Respiratory system

• Excretory system

• Circulatory system

Carson is studying the human body and wants to understand the main role of the liver in the digestive system. What should he know?

• To produce bile

• To break down proteins

• To store bile

• To absorb nutrients

Kentreena is studying human anatomy and wants to know which organ stores bile produced by the liver. Can you help her find the answer?

• Gallbladder

• Pancreas

• Kidney

• Spleen